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Valve

A technology of valves and valves, which is applied in the field of valves for opening and closing flammable and explosive gas medium cylinders, and can solve problems such as slow opening speed and safety accidents

Active Publication Date: 2012-05-02
NINGBO FUHUA VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual valves have the disadvantage of slow opening speed, while solenoid valves are used to open and close flammable and explosive gas medium cylinders, which can easily cause safety accidents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: refer to figure 1 , figure 2 , image 3 . figure 1 The state in which the main valve closes the column hole and the gas outlet under the action of the main spring and the auxiliary valve closes the main valve under the action of the auxiliary spring. Connect the external drive air source (not shown in the drawings) to the drive port, so that the drive air enters the piston cavity connected to the drive port and acts on the plane near the top of the piston to push the piston to make a linear movement to the left in the piston cavity At the same time, overcoming the force of the auxiliary spring, the small-diameter end face of the different-diameter plug pushes the auxiliary valve, so that the auxiliary valve produces a displacement sufficient to open the main valve, and then the convex ring on the small diameter of the different-diameter plug pushes the balance valve. The main valve in the pressure chamber produces a certain displacement so that the mai...

Embodiment 2

[0010] Embodiment 2: refer to figure 1 , figure 2 . In this embodiment, on the basis of Embodiment 1, a thimble is threaded on the driving sleeve. Once the driving air pressure is missing, (loosen the nut) turn the thimble to move the piston, and the air source port can also be connected or closed. , Outlet.

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Abstract

The invention relates to a mechanical fitting, in particular to a valve for opening and closing a flammable and explosive gas medium steel cylinder. The valve comprises a mechanism which is arranged on a shell and is used for connecting or closing a gas source inlet and a gas outlet. The invention adopts the technical scheme, so the safety performance is improved, the service life is prolonged, and the output efficacy of the gas medium is improved.

Description

technical field [0001] The invention relates to a mechanical accessory, in particular to a valve for opening and closing a cylinder of inflammable and explosive gas medium. Background technique [0002] At present, the commonly used high-pressure gas cylinder valves in the prior art mainly adopt manual valves or electromagnetic valves. Manual valves have the disadvantage of slow opening speed, while solenoid valves are used to open and close flammable and explosive gas medium cylinders, which can easily cause safety accidents. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a valve suitable for opening and closing flammable and explosive gas medium cylinders which overcomes the defects of the prior art. The technical solution adopted by the present invention to solve the technical problem is: a valve, which includes a shell, and the shell is provided with a mechanism for communicating or closing the air source p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K27/00F16K31/122
Inventor 钱发祥汤华达罗学武
Owner NINGBO FUHUA VALVE